A clip of the 1978 ABC TV series "The Truckies" found at the end of a U-matic tape. No clips of the series seem to be uploaded, and no episodes are listed at the NFSA. So unless the ABC has copies* this might be the only copy available.
*They might, because before deciding on "Bluey", the Late Show DVD commentary mentions they tried overdubbing this. But having a lot of shots of men driving trucks didn't make for good comedy material, so Bargearse was born. But who knows if it's stayed in archives since 1992.
Originally uploaded by FLEMISHDOG on April 17, 2016 at https://www.youtube.com/watch?v=H0sSmCInCk8.